Announcement on Anticipated Triggering of Downward Adjustment Conditions for Kesi Convertible Bond Conversion Price

Securities Code: 300856 Securities Abbreviation: Kesi Shares Announcement Number: 2026-045

Bond Code: 123192 Bond Abbreviation: Kesi Convertible Bond

Nanjing Kesi Chemical Co., Ltd.

Announcement on Anticipated Triggering of Downward Adjustment Conditions for Kesi Convertible Bond Conversion Price

The Company and all members of the Board of Directors guarantee the truthfulness, accuracy, and completeness of the information disclosed, and are not aware of any false representations, misleading statements, or material omissions.

Special Notice:

1. Securities Code: 300856 Securities Abbreviation: Kesi Shares

2. Bond Code: 123192 Bond Abbreviation: Kesi Convertible Bond

3. Conversion Price: 17.32 RMB/share

4. Conversion Period: October 19, 2023 to April 12, 2029 (if it falls on a legal holiday or rest day, it will be extended to the first business day thereafter)

5. From July 14, 2026, to July 27, 2026, the closing price of Nanjing Kesi Chemical Co., Ltd. (hereinafter referred to as the "Company") stock has been below 85% of the current conversion price of "Kesi Convertible Bond" (17.32 RMB/share) (i.e., 14.72 RMB/share) for 10 trading days. It is anticipated that the downward adjustment clause for the conversion price stipulated in the "Prospectus for the Issuance of Convertible Corporate Bonds by Nanjing Kesi Chemical Co., Ltd. to Unspecified Objects" (hereinafter referred to as the "Prospectus") may be triggered. If the downward adjustment clause for the conversion price is triggered, the Company will fulfill the subsequent deliberation procedures and information disclosure obligations in a timely manner in accordance with the "Shenzhen Stock Exchange Listed Company Self-Regulatory Supervision Guidelines No. 15 — Convertible Corporate Bonds" and the "Prospectus." Investors are kindly reminded to pay attention to investment risks.

I. Basic Information of Convertible Bonds

(I) Issuance of Convertible Bonds

With the approval of the China Securities Regulatory Commission's "Approval on Nanjing Kesi Chemical Co., Ltd.'s Registration for Issuance of Convertible Corporate Bonds to Unspecified Objects" (Document No. [2023] 680), the Company issued 7,249,178 convertible bonds to unspecified objects, with a face value of RMB 100.00 per bond, issued at par. The total issuance amount was RMB 724,917,800.00. After deducting non-tax issuance expenses, the net proceeds from this issuance were RMB 716,332,190.67.

(II) Listing of Convertible Bonds

With the approval of the Shenzhen Stock Exchange, the Company's convertible bonds were listed and traded on the Shenzhen Stock Exchange starting from May 11, 2023, with the bond abbreviation "Kesi Convertible Bond" and bond code "123192."

(III) Conversion Period of Convertible Bonds

The conversion period for the convertible bonds issued this time starts from the first trading day six months after the issuance of the convertible bonds ends (April 19, 2023), which is October 19, 2023, until the maturity date of the convertible bonds (April 12, 2029) (if it falls on a legal holiday or rest day, it will be extended to the first business day thereafter; interest on payments during the extension period will not be calculated separately).